Pump



Aug. 3 1926.

. 1,594,469 J. SCHORNACK PUMP Filed March 17, i925 J it r l Fra I JAMES 5CHORNACK,

atl'oz mug Patented Aug. 3, 1926.

UNITE era-res JAME$ SCI-IORNAGK, 0F NEWARK, NEW JERSEY.

PUMP.

Application filed March 17, 1925,. Serial No. 16,176.

My invention relates to improvements in pumps.

An important object of the invention is to provide a pump, adapted for pumping the pneumatic tires of an automobile, and having means whereby it may be connected with and driven from the front end of the crank shaft of the engine.

A further object of the invention is to pro vide means whereby the rotation of the crank shaft may be employed to reciprocate the piston of the pump.

A further object of the invention is to provide a pump of the above mentioned character which is simple in construction, and highly convenient in use.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure l is a perspective view of a pump embodying my invention,

Figure 2 is a central vertical section 'through the same, parts in elevation,

Figure 3 is a side elevation of the pump,

Figure 4 is a side elevation of the rack loop,

Figure Sis a plan view of the pump,

Figure 6 is a horizontal section taken on line 6-6 of Figure 2, and,

Figure 7 is a transverse section taken on line 77 of Figure 4:.

In the drawings wherein for the purpose of illustration isshown a preferred embodiment of my invention, the numeral 10 designates the vertical cylinder of an air pump, rigidly mounted upon a base 11. This cylinder is equipped with the usual outlet hose 12'and air inlet 13. Mounted to reciprocate within the cylinder is a plunger 14, moved by a rod 15, extending to the exterior of the top of the cap 16 of the cylinder and having the usual transverse handle 17 rigidly secured thereto. The foregoing description is that of the ordinary hand operated air pump employed in inflating pneumatic tires of automobiles.

Rigidly mounted upon the base '11, pref erably upon diametrically opposite sides of the cylinder 10, are vertical rigid rods 18, the upper ends of which are bent into horizontal handles 19, and from these handles project upstanding risers 20, carrying a horizontal transverse member 21. The transverse member 21 is equipped with a horizontal bearing 23, as shown. I

This bearing receives a rotatable drive shaft 24, provided at its forward end with a clutch 25, adapted for engagement with the co-acting clutch element 26 connected with the shaft 27, which may be the for- .ward end of the crank shaft of the engine of the automobile, or a shaft connected with the crank shaft of the engine. As is well known, the majority of automobiles which are equipped with self starters, do not carry the hand crank permanently upon the crank shaft, but it is placed thereon when it is necessary to crank the engine.

The numeral 28designates a rack-loop or reciprocatory element, which, as more clearly shown in Figure 7, is substantially U-shaped in cross section and is provided at its outer edge with an overhanging or inwardly projecting marginal flange 29. This rack-loop is provided upon its inner wall 30 with gear teeth 3i, extending outwardly, and formed upon the same in anysuitable manner. Rigidly attached to the upper end of the rack-loop 28 is a rigid horizontal arm 32, provided with a socket or clamp element 38, engaging above the central portion of the handle 17. Arranged Joeneath the clamp element 33 is a co-acting clamp ele-- ment 34, which is attached to the upper clamp element by bolts 35 or the like. i The clamp element 34 has an opening 36, receiving the upper end of the plunger rod 15. In applying the lower clamp element 34 to the plunger rod, the handle 17 must of course befirst removed from the rod and subsequently attached tothe rod. At its lower end, the rack-loop 28 is provided with a guide ring 37, preferably formed integral therewith. This guide ring is slid over the top of the cylinder 10 by rem'oving the cap 16, as is obvious.

A gear 38, see more particularly Figure 7, is rigidly mounted upon the rear end of ing the gear in proper engagement with the rack teeth 31. It is obvious that the sizeof the gear 38 may bewaried, depending;

upon the speed at which the rack-loop is to e; rivem and at dent ai im 1 s a ree ers a ray as et a ed with at r Irmthe usetof the apparatus, the hose 12 is I y tv ith the, al e of e pne ma ic. n the usual manner, the operatorthen heldsthc handles, 19 in the. two hands, andire;

rles staerump hent t eutomobile, bringing the clut h-element 25into en; gage nent witl,i-,the clutch e1e,ment26. If es r d; h hand e 19 may be mp yed to hcld against upward movement r. ther-d spl cemen ue o wp i n ot the engine The, rotation of the; crank aha-W Wi t drive t ea r 8? whic i urn wilL-canse the rack loop 28 to reciprocate. This rack-loop,- beingmonnected with the p nger rod 1:3, Willi-intur reciprocate the plunger, and hence tliepun p will be operte acompressing;the air as isobvious. si e e under cdi mt e o m of my invention herew-itlnshown and described tebe a a Pref re exampl 1- the ame and 11ato i-Quscha ges nthe t re ts and-err igem nt t Pa t ay be h i to without departingfrom the spirit my rzeatian or he -spent thelQ'r-Jr cla ms-- Having-thus describedfmy invention, what I A Pump c mpris ng rmab e ea stths nt al yi e tica yl nde m t upon ise,a plunger within the cylinder, a looprack a connected with the plunger, a se tlel dablr g i g e cyl nde a d tachedt the loop rack, a support carried by the base d having a bearing, a shaftcjouraled fi arin a g rlc r d y the shaft and iengaging the loop raclgand means to-drive the shaft. I

2. A pump comprising a'portable base, a; substantially verticalcylinden mounted upon the base,,a pair of substantially,vertical ,rods, mounted upon, the. base upon opposite sides of; the cylinder andihaving agenoraltyhorizontal handles and provided with a bearing, ar -plunger within the, cylinder, a shaft journaledin the bearing, arack device connectedwiththe plunger ,and driven, by the gear, andmeans to rotate the shaft.

3. A pump comprising cylinder, a plunger to reciprocate therein, a, plunger rod connected with the plunger, a rack device connected at one end with the plunger rod, guide means connected with the rack device and slidably engaging the cylinder, a support, a shaft rotatable upon the support, a gear carried by the shaft and engaging the rack device and a clutch element to engage the coacting clutch element of the crank a t o he a ette-v 4; A pump comprising a substantially vertical cylinder, at plunger to reciprocate within the cylinder, a plunge-r rod connected with theplunger, a raclg loopconnected with one end of the plunger rod, guide means cone e r thu la k-leap. nd li ab y 11- gaging the cylinder, a support connectedloop, and a clutch; element secured to;t-h e ha to enga e t coast ng lut lemen of the crank shaftcf the engine,

5. A pnmp comprising a-rbase, agvertiwl cylinder mounted uponthe base, a plunger.- o recip cate i n he y inde apluneer rod connected with the plungenverticalrods mounted upon the base and; provided near h i rn-c nds h han le-s n r er yia bearing, a, rack-loop connected wean-1e upper end of the plungen-rod,v a sleeve see; cured to the. lOWQr end of, the rack loop and l lahl 1 11 he y nden v haftd. in the bearing, a gear-mounted-upon the fihaft idie n ng he ck-100p nd utc element-carried ,by; the shaft,

6, 'Pumrompri ing n pstandima yl-i inder, a reciprocatery plunger within the cylinder, a plunger rod-connected with} the plunger, a transverse handle carried bythe. plunger rod, a support i connected Withj'the cylinderandiicarrying abearing, a, shaft J UFIlfllQCLg L he ear g,- a, e pr c te rack device, a connect-ion carried by, the upper end of the reciprocatory rack device and having a clamp, engaging the, transverse handle, a guide element secured to the ,lower end of the reciprocatory rack device and lid blr nga ng, h yl nd r, a ge cured to one end of said shaft and engaging the rackdevice, and a clutch, element carried by,said shaft.

- 7; A pump. comprising portable base depte to be pla d p t e u d. t e like, a support connected with'the-ibase and carrying a bearing andhjandl e means arranged so that the operatormay firmlyhold the, portable. base; upon the ground or the like, ashaft oi-irnaled-in the bearing and having a clutch element for engaging with a coacting clutch element, of the cranl; shaftof the engine, a -gear connected with said shaft, and; air compressing mechanism mounted upon thebase and drivelrby vsaid gear.

8. A pump comprising; portable base adapted to be arranged upon the ground or the like, a supporting frame mounted upon the base and having a pair of handles near its top and so arranged that they may be employed to firmly hold the portable base upon the ground or the like, and also carrying a bearing, a shaft journaled in the bearing, a clutch element carried by the shaft to engage with the clutch element of the crank shaft of the engine, a gear mounted upon said shaft, and air com- 10 pressing mechanism mounted upon the base and driven by said gear.

In testimony whereof I aflix mv signature.

JAMES SCI-IORNACK; 

